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Observation of memory behaviour in cadmium sulphide nanorods doped ferroelectric liquid crystal mixture
Authors:Ashok Chaudhary  Rohit Mehra  K.K. Raina
Affiliation:1. Department of Physics , Dr B R Ambedkar National Institute of Technology , Jalandhar 144011 , Punjab , India;2. Materials Research Laboratory , School of Physics and Materials Science, Thapar University , Patiala 147004 , Punjab , India
Abstract:In this study, cadmium sulphide (CdS) nanorods doped ferroelectric liquid crystal (FLC) sample cells have been prepared and studied. A memory effect has been observed in CdS nanorods (≤0.3?wt%) doped FLC mixture and confirmed by textures, dielectric and optical studies. The addition of nanorods increases the memory behaviour and efficiency. The occurrence of memory behaviour has been explained due to charge transfer from liquid crystal molecules to CdS nanorods and exists there for 5–15?min in 0.1–0.3?wt% CdS nanorods doped samples. An improvement in polarization, switching time, threshold voltage and rise time parameters has also been noticed in CdS nanorods doped FLC samples.
Keywords:ferroelectric liquid crystal  cadmium sulphide nanorods  memory effect  switching time
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